Undersea-searchlight



' 0. H. HARNl- Ylv UNDERSEA SEARCHLIGHT.

APPLICATIGN FILED JULY 15, 1918.

Patented Feb. 24,1920.

@M201 we 11 0. H. HARN'EY'.

UNDIERSEA SEARCHLIuG-HT.

AFPLmAUeM FILED ,JULY .15. 19.18..

2 SHEETS-SHEET 2.

Patented Feb. 24, 1920.

To all 'wko/m,V it may concern:

STATES PATENT OFFICE..

Y OLAF IH. HABHIY, OF IADISON, WISCONSIN'.

mmm-semana.

- Be it known that I, OLAF H. Hmm', a citizen 'of the United States, andresidentV of Madison, in the county of Dane and State of Wisconsin, haveinvented certain new and useful Improvements in Undersea- Searchlights,of which the followingis a specification.

Y This invention relates to improved device for projectinglight raysunder the water, Aand more particularly to one adapted for use inconnection with submarines, so that objects vunder the water can bereadily seen, thereby rendering't-he device of special advantage inreconnoitering and' observing objects which might destroy the submarine.

lVith the above objects and others in view, as will appear as thedescription proceeds, the invention comprises the various novelfeaturesof construction and arrangement Yofparts which will be morefully described ereinafter and set forth With particularity in theclaims appended hereto.

Reference is had to the accompanying drawings, forminga part of thisapplica-V tion, in which like reference characters 1ndicate thecorresponding parts throughout the several views, in wh1ch Y Figure 1 isa sectional view of the hull of a submarine provided with myimproveddevice, shown in section, Y

Fig. 2 is a vertical sectional view taken on the line 2 2 of Fig. 1,

Fig. 3 is a sectional view taken on the line 3 3 of Fig-1, and

Fig. 4. is a detailed View orale end portion shown in Fig. 3,representing the inner -end of the device disposed within the submarineor the like.

' undersea vessel which is providedwith Referring to the drawings indetail, there is shown the hull 10 of a submarine or like 13 and anintermediate packing -washer 'orgland 16 so as vto produce a watertightjoint.

1n connection with a securing member u specttotheothensnidctilsanpmvidedY Havingthusdeseribedmyinventiomiht 11n thsaded on the outer seetiop 13.

Iordertoslidethesectlonsmewithre- Y special-.anon of Letters hun.

Application alga July 15; 191s. serial no. 244,995.

lwith depending apertured ears 18 threadedA depending uponV the work tobe done.

' shown at 35 and being connected in circuitV Patented Feb. 24, 1920.

to receive an oppositely threaded stemv 19, which in connection with amanipulating part 20 constitutes a turnbuckle well known for thispurpose. By rotating the screw 19, the sections will be moved on oneanother, depending upon the direction of rotation of the screw. A y

At the inner end, the section 12 is internally threaded to receive alens holding annulus 21, the same being externally knurled as shown at22 to facilitate rot-ation thereof anda lens 23 being carried therein,the position of the lens bein capable of being varied, to suit diirentvisions r t the outer end, the section 13 is internally threaded asshown at 24 so as to receive the externally threaded and adjustableannulus 25 therein, 'the same having a suitable watertight peering glass2 6 at the outer end thereof.

Mounted on the outer tubular section 13, as by threading the same, asshown at 27, is a circular reflector plate 28, the same liectingsurfaces, for receiving electric light bulbs suitably protected from thewater by closure plates 31 made watertight The the same passing througha tube 34 having watertight connection with the hull 10 as with asuitable source-of current supply.

By this means, it will be seen that I have provided an improved devicewhich may be used for projecting light rays under water and for viewingtherethrough, and observing objects as desired. If desired, the annulus21 and also the' annulus 25, may be pno vided with shade members 36. YFrom the foregoing discription taken in connection with the accompanyingdrawings, it is thought that Ya clear andcomprehensive understanding ofthe construction, operation and advantag of my inventionA may be had,and while I have Vshownv and described the device sembodying a IVeiicstl'ueture,1desirethatitbeIlndedioqidthatsuchchangmaybemadeinsaidslruc- `tureasdonotdepartfromjllespiritualiscope of the invention as having a series ofdepressions 29 having re- I threaded on said outer tube outwardly of.

I claim as new, and desire to secure by Letters Patent of the UnitedStates, is:

1. In an undersea searchlight, a hull, telescopic sections positionedthrough the hull, means for adjusting said sections, lens carryingmembers .at the inner and outer ends of said sections, a light reflectorcarried upon one section outwardly of the hull, 'and electric ylightbulbs mounted therein and having conduit wires disposed through the hullin watertight eonnection, said electric light `bulbs being inclosed, andadapted to project rays forwardly of the peering end of the device.

2. An undersea searchlight device, comprising adjustable telesco' ictubular sections, means for securing t e same through an opening in thehull of a submarine or the like, an adjustable transparent member at theexposed end of the outer tube, a similar member at the inner end of saidtubular section, a reflector plate having an annulus the hull and havingconcaved depressions therein, s aced illuminating lights mounted in saide ressions, cover plates for said reflector p ate and inclosing thelighting means, and a tube disposed through the hull for receiving theconductor wires for the llighting means therethrough.

3. An undersea searchlight device, comprising adjustablev telescopictubular sections, means for securing the same through an opening in thehull of a submarine or the like, an adjustable transparent member at theexposed end of the outer section, a similar member at the inner end ofthe inner section, a reflector plate having an annulu's threaded on saidouter tube outwardly of t-he hull and having concaved depressionstherein, spaced illuminating vlightsy mounted in said depressions, coverplates for said reflector plate and including lightingv means,

a tube disposed through the hull for receiving the conducting wires forthe lighting means, lugs carried bv said tubular sect-ions, and havinginternally threaded apertures, and a screw having oppositely threadedterminals engaged with said apertures and adapted to be turned foradjusting said sections one on the other.

In testimony whereof, I affix my signature hereto.

OLAF H. HARNEY.

